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| Date: | 12 16 1951 |
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| Description: | At left, Lynn Hazelbaker is shown demonstrating the winning entry of the Madison Youth Council's rat bait box building contest built by Edward Ripp, age 14... |
| Date: | 1867 |
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| Description: | A diagram of McCormick's cultivator-reaper, which was patented in 1845. The illustration, titled "The Cultivator" depicts a man using a rake to remove the ... |
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